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Refrigerator freezing food

01 - Refrigerator Temperature Control Thermostat
The temperature control thermostat directs voltage to the compressor, evaporator fan motor, and condenser fan motor (if applicable). If the temperature control thermostat is not working properly, it may cause the refrigerant system to run longer than necessary. As a result, the refrigerator will be too cold. To determine if the thermostat is defective, rotate the thermostat from the lowest setting to the highest setting and listen for a click. If the thermostat clicks, it is not likely defective.... If the thermostat does not click, use a multimeter to test the thermostat for continuity. If the temperature control thermostat does not have continuity at any setting, replace it.
Required Part
Refrigerator Temperature Control Thermostat
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Most Common Solution
02 - Refrigerator Thermistor
The thermistor monitors the air temperature and sends the temperature reading to the control board. The control board then regulates power to the compressor and evaporator fan based on the thermistor readings. If the thermistor is defective, the compressor and evaporator fan may run too frequently. As a result, the refrigerator will be too cool. To determine if the thermistor is defective, test it with a multimeter. The thermistor resistance should change in conjunction with the refrigerator tem...perature. If the thermistor resistance does not change, or the thermistor does not have continuity, replace the thermistor.
Required Part
Refrigerator Thermistor
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Most Common Solution
03 - Refrigerator Temperature Control Board
The temperature control board provides voltage to the compressor and fan motors. If the control board is faulty, it may send continuous voltage to the compressor or fan motors. As a result, the refrigerator will be too cool. Control boards are often misdiagnosed—before replacing the control board, first test all of the more commonly defective components. If none of the other components are defective, consider replacing the temperature control board.
Required Part
Refrigerator Temperature Control Board
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Common Solution
04 - Refrigerator Main Control Board
The main control board might be defective. However, the control board is very rarely the cause of the problem. Before replacing the control board, first test all of the more commonly defective components. If none of these components are defective, consider replacing the main control board.
Required Part
Refrigerator Main Control Board
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Common Solution
05 - Temperature set too cold
Adjust the refrigerator temperature control to a warmer setting. Many models have a recommended temperature setting displayed, usually between 34 and 38 degrees Fahrenheit. Wait 24 hours for the temperature to adjust appropriately.
06 - Refrigerator Evaporator Fan Motor
The refrigerator's evaporator fan motor draws air over the cold evaporator coils which chills the air. The air is then circulated through the refrigerator and freezer compartments to keep the temperature low enough to preserve food. If the evaporator fan motor is malfunctioning, the cold air from the freezer or refrigerator evaporator coils can migrate through the air ducts to the bottom of the refrigerator and freeze the food. You should try rotating the evaporator fan blades to see if they spi...n freely. If not, it's likely the motor bearings have seized and the motor will need to be replaced. You can also use a multimeter to test the motor for electrical continuity. If the motor has no electrical continuity, the component won't run and a new motor will need to be installed.
Required Part
Refrigerator Evaporator Fan Motor
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Common Solution